Lantern fan



FIG. 1 is a perspective view of a design for a lantern fan;

FIG. 2 is another perspective view thereof, but shown in an alternate position of use;

FIG. 3 is another perspective view thereof;

FIG. 4 is another perspective view of FIG. 1, but shown in another alternate position of use;

FIG. 5 is a top view of FIG. 1;

FIG. 6 is a bottom view thereof;

FIG. 7 is a front side view thereof;

FIG. 8 is a rear side view thereof;

FIG. 9 is a left side view thereof; and,

FIG. 10 is a right side view thereof.

The broken lines illustrate portions of the lantern fan that form no part of the claimed design. 

CLAIM The ornamental design for a lantern fan, as shown and described. 